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Home >> Hummer >> 2009 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 6.2L - DTC P0010 To DTC P0232 >> DTC P0191 >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open or High Resistance Short to Voltage Signal Performance
5-Volt Reference P0641 P0641, P06A6 P0641 P06A6
Fuel Rail Pressure (FRP) Sensor Signal P0192 P0191, P0193 P0193 P0191
Fuel Line Pressure Sensor Low Reference - P0641, P06A6 - P06A6
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